EP 3591714 B1 20221228 - P-TYPE PERC DOUBLE-SIDED SOLAR CELL, ASSEMBLY THEREOF, SYSTEM THEREOF AND PREPARATION METHOD THEREFOR
Title (en)
P-TYPE PERC DOUBLE-SIDED SOLAR CELL, ASSEMBLY THEREOF, SYSTEM THEREOF AND PREPARATION METHOD THEREFOR
Title (de)
DOPPELSEITIGE PERC-SOLARZELLE VOM P-TYP, ANORDNUNG DAFÜR, SYSTEM DAFÜR UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
CELLULE SOLAIRE BIFACIALE DU TYPE PERC DE TYPE P, ENSEMBLE DE CELLE-CI, SON SYSTÈME ET SON PROCÉDÉ DE PRÉPARATION
Publication
Application
Priority
- CN 201710122400 A 20170303
- CN 2018077591 W 20180228
Abstract (en)
[origin: EP3591714A1] Provided are a bifacial P-type PERC solar cell, preparation method, module and system. The bifacial P-type PERC solar cell consecutively comprises a rear silver electrode (1), rear aluminum grid lines (2), a rear passivation layer (3), P-type silicon (4), an N-type emitter (5), a front silicon nitride film (6), and a front silver electrode (7); the rear silver electrode (1) is perpendicularly connected with the rear aluminum grid lines (2), grid line backbones (10) are disposed on the rear aluminum grid lines (2), an outer aluminum grid frame (9) is disposed around the rear aluminum grid lines (2), the grid line backbones (10) are connected with the rear aluminum grid lines (2), and the outer aluminum grid frame (9) is connected with the rear aluminum grid lines (2) and the rear silver electrode (1); a first laser grooving region (8) is formed in the rear passivation layer (3) with laser grooving, and the rear aluminum grid lines (2) are connected to the P-type silicon (4) via the first laser grooving region (8); the first laser grooving region (8) includes a plurality of sets of first laser grooving units (81) arranged horizontally, each of the sets of first laser grooving units (81) includes one or more first laser grooving bodies (82) arranged horizontally, and the rear aluminum grid lines (2) are perpendicular to the first laser grooving bodies (82). The solar cell is simple in structure, low in cost and easy to popularize, and has a high photoelectric conversion efficiency.
IPC 8 full level
H01L 31/0224 (2006.01); H01L 31/068 (2012.01); H01L 31/18 (2006.01)
CPC (source: CN EP KR US)
H01L 21/76 (2013.01 - KR); H01L 31/022425 (2013.01 - CN); H01L 31/022433 (2013.01 - EP US); H01L 31/022441 (2013.01 - CN KR); H01L 31/02366 (2013.01 - US); H01L 31/047 (2014.12 - KR); H01L 31/068 (2013.01 - EP); H01L 31/0684 (2013.01 - CN KR US); H01L 31/1804 (2013.01 - CN EP KR US); H01L 31/1864 (2013.01 - EP); H01L 31/1868 (2013.01 - CN EP KR US); Y02E 10/50 (2013.01 - KR); Y02E 10/547 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3591714 A1 20200108; EP 3591714 A4 20201230; EP 3591714 B1 20221228; CN 106887475 A 20170623; CN 106887475 B 20190705; JP 2020509600 A 20200326; JP 7023974 B2 20220222; KR 102323460 B1 20211108; KR 20200005536 A 20200115; US 10964828 B2 20210330; US 2020119208 A1 20200416; WO 2018157824 A1 20180907
DOCDB simple family (application)
EP 18760574 A 20180228; CN 201710122400 A 20170303; CN 2018077591 W 20180228; JP 2019547972 A 20180228; KR 20197029114 A 20180228; US 201816489670 A 20180228